Demountable-rim lock



OUNTA RIM LOCK F led Jun 9, 1925 ZFHHIIII I H II 'IIHI 3+ hm; V I II: V.

Patented Oct. 20, 1925. y y 1,557,859

UNITED STATES PATENT OFFICE.

RICHARD H. OBE-IEN, 01 FOREST CITY, PENNSYLVANIA.

DEMOUNTABLE-RIM LOCK.

Application filed June 9, 1925. Serial No. 36,018.

To all whom it may concern. material, and shrunk on the wheel. Suit- Beit known that I, RICHARD H. OBRIEN, able holes are drilled in the wheeland tire, citizen of the United States, residing at Forhalf of the holebeing in wheel as at 3, est City, in the county of Susquehanna and andhalf in the tire as at 4, a tapered dowel 5 State of Pennsylvania, haveinvented certain pin 6, having a length less than the depth 45 new anduseful Improvements in a De of the hole is then driven in, and the holemountable-Rim Lock; and I do hereby detapped to receive a threaded plug5, which clare the following to be afull, clear, and functions to holdthe tire firmly in place on exact description of the invention, such asthe wheel, and to prevent it from coming off will enable others skilledin the art to which or working loose from the wheel in case the .0 itappertains to make and use the same. wheel and tire receives a hard bumpor The prime object of this invention is to otherwise. It is understoodthat any num provide means for interlocking a wheel rim ber of dowelpins and plugs may be used with a tire band in such a manner that theWithout departing from the spirit of this inl when subjected to jolts orhard use. It has been found that wheels now in use Other objects willappear from the folget double flanged in a short time from lowingdescription of the device, and the wear and otherwise, and when changedare single sheet of drawings which are a part of thrown away for scrap.It is estimated this application. that where four months service may beob- In the drawings, tained from a cast iron wheel, under ordi- Fig. 1designates a plan view of a wheel nary use, twelve may be obtained froma and tire; steel tire. By this invention, one set of Fig. 2 representsa sectional view taken wheels may be tired approximately five 5 through22 of Fig. 1; times before the wheel is considered unfit Fig. 3illustrates a sectional view taken for further service. through adiameter of the wheel and tire, What I claim is: showing the tire partlyremoved from the The combination with a wheel rim of a wheel. tirecomprised of soft steel and shrunk on 30 Fig. 4: illustrates a sectionalview of a porthe rim, of a hole half in the rim and half tion of thewheel and tire, drawn to an enin the tire, and of means for interlockinglarged scale, and showing the wheel rim the rim and tire togetherconsisting of a and tire in interlocked relationship. dowel pin driveninto the hole, the dowel pin Fig. 5 designates a plan view of the plugbeing less in length than the depth of the 35 and dowel pin. hole, andbeing firmly held in placeby Numeral 1 designates a flange portion ofmeans of a threaded plug screwed into the a wheel, usually made fromcast iron or cast hole at the end of the pin. steel; if the wheel ismade from cast iron, In testimony whereof I afiix my signature. theflange is chilled, while the tire 2 is con- 4 structed from soft steelor other suitable RICHARD H. OBRIEN.

tire band will not warp loose from the rim vention. 55

